//
// Created by liyufan on 2021/7/20.
//

#include "oled.h"
#include "oledfont.h"
#include "bmp.h"
#include "stdio.h"
#include "math.h"
//OLED���Դ�
//��Ÿ�ʽ����.
//[0]0 1 2 3 ... 127
//[1]0 1 2 3 ... 127
//[2]0 1 2 3 ... 127
//[3]0 1 2 3 ... 127
//[4]0 1 2 3 ... 127
//[5]0 1 2 3 ... 127
//[6]0 1 2 3 ... 127
//[7]0 1 2 3 ... 127

#if OLED_MODE == 1
//��SSD1306д��һ���ֽڡ�
//dat:Ҫд�������/����
//cmd:����/�����־ 0,��ʾ����;1,��ʾ����;
void OLED_WR_Byte(uint8_t  dat,uint8_t cmd)
{
    //DATAOUT(dat);
    if(cmd)
      OLED_DC_Set();
    else
      OLED_DC_Clr();
    OLED_CS_Clr();
    OLED_WR_Clr();
    OLED_WR_Set();
    OLED_CS_Set();
    OLED_DC_Set();
}
#else

//��SSD1306д��һ���ֽڡ�
//dat:Ҫд�������/����
//cmd:����/�����־ 0,��ʾ����;1,��ʾ����;
void OLED_WR_Byte(uint8_t dat, uint8_t cmd)
    {
        uint8_t i;
        if (cmd)
        {
            OLED_DC_Set();
        } else
        {
            OLED_DC_Clr();
        }
        OLED_CS_Clr();
        for (i = 0; i < 8; i++)
        {
            OLED_SCLK_Clr();
            if (dat & 0x80)
            {
                OLED_SDIN_Set();
            } else
            {
                OLED_SDIN_Clr();
            }
            OLED_SCLK_Set();
            dat <<= 1;
        }
        OLED_CS_Set();
        OLED_DC_Set();
    }

#endif

void OLED_Set_Pos(unsigned char x, unsigned char y)
    {
        OLED_WR_Byte(0xb0 + y, OLED_CMD);
        OLED_WR_Byte(((x & 0xf0) >> 4) | 0x10, OLED_CMD);
        OLED_WR_Byte((x & 0x0f) | 0x01, OLED_CMD);
    }

//����OLED��ʾ
void OLED_Display_On(void)
    {
        OLED_WR_Byte(0X8D, OLED_CMD);  //SET DCDC����
        OLED_WR_Byte(0X14, OLED_CMD);  //DCDC ON
        OLED_WR_Byte(0XAF, OLED_CMD);  //DISPLAY ON
    }

//�ر�OLED��ʾ
void OLED_Display_Off(void)
    {
        OLED_WR_Byte(0X8D, OLED_CMD);  //SET DCDC����
        OLED_WR_Byte(0X10, OLED_CMD);  //DCDC OFF
        OLED_WR_Byte(0XAE, OLED_CMD);  //DISPLAY OFF
    }

//��������,������,������Ļ�Ǻ�ɫ��!��û����һ��!!!
void OLED_Clear(void)
    {
        uint8_t i, n;
        for (i = 0; i < 8; i++)
        {
            OLED_WR_Byte(0xb0 + i, OLED_CMD);    //����ҳ��ַ��0~7��
            OLED_WR_Byte(0x00, OLED_CMD);      //������ʾλ�á��е͵�ַ
            OLED_WR_Byte(0x10, OLED_CMD);      //������ʾλ�á��иߵ�ַ
            for (n = 0; n < 128; n++)OLED_WR_Byte(0, OLED_DATA);
        } //������ʾ
    }


//��ָ��λ����ʾһ���ַ�,���������ַ�
//x:0~127
//y:0~63
//mode:0,������ʾ;1,������ʾ
//size:ѡ������ 16/12
void OLED_ShowChar(uint8_t x, uint8_t y, uint8_t chr)
    {
        unsigned char c = 0, i = 0;
        c = chr - ' ';//�õ�ƫ�ƺ��ֵ
        if (x > Max_Column - 1)
        {
            x = 0;
            y = y + 2;
        }
        if (SIZE == 16)
        {
            OLED_Set_Pos(x, y);
            for (i = 0; i < 8; i++)
                OLED_WR_Byte(F8X16[c * 16 + i], OLED_DATA);
            OLED_Set_Pos(x, y + 1);
            for (i = 0; i < 8; i++)
                OLED_WR_Byte(F8X16[c * 16 + i + 8], OLED_DATA);
        } else
        {
            OLED_Set_Pos(x, y + 1);
            for (i = 0; i < 6; i++)
                OLED_WR_Byte(F6x8[c][i], OLED_DATA);

        }
    }

//m^n����
uint32_t oled_pow(uint8_t m, uint8_t n)
    {
        uint32_t result = 1;
        while (n--)result *= m;
        return result;
    }

//��ʾ2������
//x,y :�������
//len :���ֵ�λ��
//size:�����С
//mode:ģʽ	0,���ģʽ;1,����ģʽ
//num:��ֵ(0~4294967295);
void OLED_ShowNum(uint8_t x, uint8_t y, uint32_t num, uint8_t len, uint8_t size)
    {
        uint8_t t, temp;
        uint8_t enshow = 0;
        for (t = 0; t < len; t++)
        {
            temp = (num / oled_pow(10, len - t - 1)) % 10;
            if (enshow == 0 && t < (len - 1))
            {
                if (temp == 0)
                {
                    OLED_ShowChar(x + (size / 2) * t, y, ' ');
                    continue;
                } else enshow = 1;

            }
            OLED_ShowChar(x + (size / 2) * t, y, temp + '0');
        }
    }

//��ʾһ���ַ��Ŵ�
void OLED_ShowString(uint8_t x, uint8_t y, uint8_t *chr)
    {
        unsigned char j = 0;
        while (chr[j] != '\0')
        {
            OLED_ShowChar(x, y, chr[j]);
            x += 8;
            if (x > 120)
            {
                x = 0;
                y += 2;
            }
            j++;
        }
    }

//��ʾ����
//x,y���������
//no�Ǻ�����ģ�����֣�0��1��2��3�����ģ�ȡģ��������ʾ������
//x�ᣬһ����������16
//y�ᣬһ����������2
//����OLED_ShowCHinese(8,0,0),������һ�����ǣ�OLED_ShowCHinese(24,0,1)
void OLED_ShowCHinese(uint8_t x, uint8_t y, uint8_t no)
    {
        uint8_t t, adder = 0;
        OLED_Set_Pos(x, y);
        for (t = 0; t < 16; t++)
        {
            OLED_WR_Byte(Hzk[2 * no][t], OLED_DATA);
            adder += 1;
        }
        OLED_Set_Pos(x, y + 1);
        for (t = 0; t < 16; t++)
        {
            OLED_WR_Byte(Hzk[2 * no + 1][t], OLED_DATA);
            adder += 1;
        }
    }

/***********������������ʾ��ʾBMPͼƬ128��64��ʼ������(x,y),x�ķ�Χ0��127��yΪҳ�ķ�Χ0��7*****************/
void OLED_DrawBMP(unsigned char x0, unsigned char y0, unsigned char x1, unsigned char y1, unsigned char BMP[])
    {
        unsigned int j = 0;
        unsigned char x, y;

        if (y1 % 8 == 0) y = y1 / 8;
        else y = y1 / 8 + 1;
        for (y = y0; y < y1; y++)
        {
            OLED_Set_Pos(x0, y);
            for (x = x0; x < x1; x++)
            {
                OLED_WR_Byte(BMP[j++], OLED_DATA);
            }
        }
    }

void OLED_Show_float(uint8_t x, uint8_t y, float num)
    {
        uint8_t str_buff[64] = {0};
        sprintf((char *) str_buff, "%0.3f", num);
        OLED_ShowString(x, y, str_buff);
    }

void OLED_Fill(unsigned char Fill_Data)
    {
        unsigned i, j;
        for (i = 0; i < 8; i++) //8ҳ������Ҫѭ����ʾ8��
        {
            OLED_WR_Byte(0xb0 + i, OLED_CMD); //ҳ��ַ0~7
            OLED_WR_Byte(0x10, OLED_CMD);     //���ø�λ�е�ַ
            OLED_WR_Byte(0x00, OLED_CMD);     //���õ�λ�е�ַ
            for (j = 0; j < OLED_Width; j++)  //ÿҳ��128����Ҫ��ʾ
                OLED_WR_Byte(Fill_Data, OLED_DATA);
        }
    }

//��ʼ��SSD1306
void OLED_Init(void)
    {
//    GPIO_setAsOutputPin(SCL_PORT,SCL_PIN ); //CLK
//    GPIO_setAsOutputPin(SDA_PORT,SDA_PIN);//DIN
//    GPIO_setAsOutputPin(RES_PORT,RES_PIN);//RES
//    GPIO_setAsOutputPin(DC_PORT,DC_PIN);//DC
//    GPIO_setAsOutputPin(CS_PORT,CS_PIN );//CS

        OLED_RST_Set();
        HAL_Delay(100);
        OLED_RST_Clr();
        HAL_Delay(200);
        OLED_RST_Set();

        OLED_WR_Byte(0xAE, OLED_CMD);//--turn off oled panel
        OLED_WR_Byte(0x00, OLED_CMD);//---set low column address
        OLED_WR_Byte(0x10, OLED_CMD);//---set high column address
        OLED_WR_Byte(0x40, OLED_CMD);//--set start line address  Set Mapping RAM Display Start Line (0x00~0x3F)
        OLED_WR_Byte(0x81, OLED_CMD);//--set contrast control register
        OLED_WR_Byte(0xCF, OLED_CMD); // Set SEG Output Current Brightness   ????????
        OLED_WR_Byte(0xA1, OLED_CMD);//--Set SEG/Column Mapping     0xa0??????? 0xa1????
        OLED_WR_Byte(0xC8, OLED_CMD);//Set COM/Row Scan Direction   0xc0???��??? 0xc8????
        OLED_WR_Byte(0xA6, OLED_CMD);//--set normal display
        OLED_WR_Byte(0xA8, OLED_CMD);//--set multiplex ratio(1 to 64)
        OLED_WR_Byte(0x3f, OLED_CMD);//--1/64 duty
        OLED_WR_Byte(0xD3, OLED_CMD);//-set display offset	Shift Mapping RAM Counter (0x00~0x3F)
        OLED_WR_Byte(0x00, OLED_CMD);//-not offset
        OLED_WR_Byte(0xd5, OLED_CMD);//--set display clock divide ratio/oscillator frequency
        OLED_WR_Byte(0x80, OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
        OLED_WR_Byte(0xD9, OLED_CMD);//--set pre-charge period
        OLED_WR_Byte(0xF1, OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
        OLED_WR_Byte(0xDA, OLED_CMD);//--set com pins hardware configuration
        OLED_WR_Byte(0x12, OLED_CMD);
        OLED_WR_Byte(0xDB, OLED_CMD);//--set vcomh
        OLED_WR_Byte(0x40, OLED_CMD);//Set VCOM Deselect Level
        OLED_WR_Byte(0x20, OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
        OLED_WR_Byte(0x02, OLED_CMD);//
        OLED_WR_Byte(0x8D, OLED_CMD);//--set Charge Pump enable/disable
        OLED_WR_Byte(0x14, OLED_CMD);//--set(0x10) disable
        OLED_WR_Byte(0xA4, OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
        OLED_WR_Byte(0xA6, OLED_CMD);// Disable Inverse Display On (0xa6/a7)
        OLED_WR_Byte(0xAF, OLED_CMD);//--turn on oled panel

        OLED_WR_Byte(0xAF, OLED_CMD); /*display ON*/
        OLED_Clear();
        OLED_Set_Pos(0, 0);
    }
